3721880

Information

• Patent Grant
• 3721880

• References
• Source

• Patent Number

  3,721,880

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  51 years ago

• CPC

  • H02H7/224 - Anti-pump circuits
  • F25B49/025 - Motor control arrangements
  • F25B2700/151 - of the compressor motor
  • F25B2700/2104 - of an indoor room or compartment
  • F25B2700/21152 - at the discharge side of the compressor

• US Classifications

  • 318 - Electricity: motive power systems
  • 062 - Refrigeration
  • 361 - Electricity: electrical systems and devices